2) Epidemiologic risk factors within the past 21 days before the onset of symptoms, such as contact with blood or other body fluids or human remains of a patient known to have or suspected to have EVD; residence in—or travel to—an area where EVD transmission is active*; or direct handling of bats, rodents, or primates from disease-endemic areas.

Probable Case

A PUI who is a contact of an EVD case with either a high or low risk exposure (see below).

Persons with no known exposure were present in an EVD outbreak affected country in the past 21 days with no low risk or high risk exposures.

* Casual contact is defined as a) being within approximately 3 feet (1 meter) or within the room or care area for a prolonged period of time (e.g., healthcare personnel, household members) while not wearing recommended personal protective equipment (i.e., droplet and contact precautions); or b) having direct brief contact (e.g., shaking hands) with an EVD case while not wearing recommended personal protective equipment (i.e., droplet and contact precautions). At this time, brief interactions, such as walking by a person or moving through a hospital, do not constitute casual contact.